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Compared to...

Colour Patches

Now we'll compare the D1x to the D1, Fujifilm S1 Pro and Canon EOS-D30. This section of the review is a technical comparison of colour and resolution.

Nikon D1x (sRGB) Nikon D1 (corrected NTSC->sRGB)
FujiFilm FinePix S1 Pro Canon EOS-D30

We used auto white balance (as for the other cameras) but oddly the D1x image ended up with a very slight 'cool cast' (blue). On the average sRGB monitor this will probably make whites look 'whiter'.

We're only measuring colour below. RGB values below were taken from a VGA reduced image (to average colours and eliminate JPEG artifacts) using the Eyedropper tool in Photoshop with a 5 by 5 Average Sample Size.

  Nikon
D1x
(sRGB)
Nikon
D1
(corrected)
FujiFilm
FinePix S1 Pro
Canon
EOS-D30
 
Patch White 219,224,233 191,197,197 202,204,200 207,199,202
       
Middle Gray 107,112,123 100,106,107 91,93,91 100,99,101
       
Patch Red 225,25,36 187,25,49 225,24,28 203,35,42
       
Patch Green 30,153,84 0,122,41 12,130,58 15,138,56
       
Patch Blue 39,39,133 33,44,109 35,30,117 32,28,110
       


Resolution Chart

Shots here are of the PIMA/ISO 12233 standard resolution test chart (more of which are available in our comparison database). This resolution chart allows us to measure the actual performance of the lens and sensor system. It measures the ability of the camera to resolve lines at gradually higher resolutions and enables us to provide a definitive value for comparison purposes. Values on the chart are 1/100th lines per picture height. So a value of 8 equates to 800 lines per picture height.

Studio light, cameras set to auto, all settings factory default. Exposure compensation +0.7 EV for all cameras.

Nikon D1x Nikon D1
FujiFilm FinePix S1 Pro Canon EOS-D30

Nikon D1x Nikon D1
FujiFilm FinePix S1 Pro Canon EOS-D30

Nikon D1x Nikon D1
FujiFilm FinePix S1 Pro Canon EOS-D30

Nikon D1x Nikon D1
FujiFilm FinePix S1 Pro Canon EOS-D30

Nikon D1x Nikon D1
FujiFilm FinePix S1 Pro Canon EOS-D30

Measurable findings (three measurements taken for each camera):

Camera Measurement Absolute Res. Extinction Res.
Nikon
D1x
Horiz LPH 1600 >2000
Vert LPH * 1150 1250
5o Diagonal LPH 900 n/a
Nikon
D1
Horiz LPH 1100 1300
Vert LPH 1150 1250
5o Diagonal LPH 900 n/a
FujiFilm
Finepix S1 Pro
Horiz LPH 1300 1450
Vert LPH 1200 1400
5o Diagonal LPH * 1000 n/a
Canon
EOS-D30
Horiz LPH 1100 1350
Vert LPH 1150 1300
5o Diagonal LPH 1000 n/a

* Visible moiré artifacts

Definition of terms:

LPH Lines per Picture Height (to allow for different aspect ratios the measurement is the same for horizontal and vertical)
5o Diagonal Lines set at 5o diagonal
Absolute Resolution Still defined detail (below Nyquist frequency*)
Extinction Resolution Detail beyond camera's definition (becomes a solid gray alias)
n/a Not Available (above the capability of the test chart)
n/v Not Visible (not visible on test results)

* Nyquist frequency defined as the highest spatial frequency where the CCD can still faithfully record
image detail. Beyond the Nyquist frequency aliasing occurs

Results just as we expected, the D1x performs extremely well in the horizontal direction with clear usable detail at 1500 lines per picture height and continues to deliver detail information to well over 2000 lines per picture height. Vertical resolution is identical to the D1. Still, there's some moire in the vertical resolution at frequencies above 1200 lines per picture height (again, we saw this in just a few of our real life shots). These results put the D1x on the top of the resolution pile (at least of D-SLR's we've tested).

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